TOPIC: Can't return to Main List after opening comic inside a folder

iPad 4 running latest ios. I have 100s of comics w/each series organized inside separate folders. For about a month now, after going into a series folder and opening a comic I cannot back out and return to the main list. I am stuck inside the folder and have to close ComicRack and reopen it to get to main list.

It just began happening and it's a real pain. Some hoo-doo to rectify this, please,,, anyone?